A silicon sample is 0.5 cm long and has a cross-sectional area of (50x10-4)2 cm 2. Find the conductivity, resistivity and resistance of the intrinsic sample. If the same sample is doped with a donor impurity to an extent of 1 atom per 10 6 atoms of silicon, find the new values of conductivity, resistivity and resistance and compare the results. Assume T = 300 K, n i = 1.45 x 1010 cm-3, μ n = 1500...